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Finding the Fourth Proportional to 634,885.16, 876,166.74 and 348,415.56

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Solution

The fourth proportional to 634,885.16, 876,166.74 and 348,415.56 is: 480,827.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,885.16 : 876,166.74 = 348,415.56 : x
  2. Step 2: Convert to fraction form
    634,885.16/876,166.74 = 348,415.56/x
  3. Step 3: Cross multiply
    634,885.16x = 876,166.74 × 348,415.56
  4. Step 4: Simplify right side
    634,885.16x = 305,270,125,370.47
  5. Step 5: Solve for x
    x = 305,270,125,370.47/634,885.16
  6. Step 6: Final answer
    x = 480,827.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.